| 摘要 |
Liquid crystal projector capable of enhancing heat radiation of light modulating means including a liquid crystal light valve, preventing dust or the like from being attached to the surface of the liquid crystal light valve, and making black matrixes formed between pixels in the liquid crystal light valve invisible. The liquid crystal projector includes a light source unit, colored-ray dividing means, light modulating means, colored-ray synthesizing means and optical projection means for enlarging and projecting the synthesized rays means onto a screen. The light modulating means includes entrance dust-proof glasses (420R), (420G), and (420B) made of crystallized quartz or sapphire having a uniaxial crystal structure and disposed on entrance sides of liquid crystal light valves (440R), (440G), and (440B) of the light modulating means, respectively, and exit dust-proof glasses (460R), (460G), and (460B) made of crystallized quartz or sapphire having birefringence and disposed on exit sides thereof, respectively. |
